To change your policy details with HealthMarkets, you typically have a few options. First, you can log in to your account on the HealthMarkets website. Once logged in, you should be able to access your policy information and make necessary updates, such as changing your address or adjusting your coverage options. If you encounter any difficulties online, you can also reach out to the customer service team for assistance. They can guide you through the process to ensure that your policy details are updated correctly. It is important to check the website for the most current contact information and specific guidance related to your policy, as procedures may vary based on the type of insurance or service you have.